wip:milestone 0 fixes

control-plane-ui/node_modules/date-fns/isSameISOWeekYear.mjs

@@ -0,0 +1,33 @@
+import { startOfISOWeekYear } from "./startOfISOWeekYear.mjs";
+
+/**
+ * @name isSameISOWeekYear
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Are the given dates in the same ISO week-numbering year?
+ *
+ * @description
+ * Are the given dates in the same ISO week-numbering year?
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
+ *
+ * @param dateLeft - The first date to check
+ * @param dateRight - The second date to check
+ *
+ * @returns The dates are in the same ISO week-numbering year
+ *
+ * @example
+ * // Are 29 December 2003 and 2 January 2005 in the same ISO week-numbering year?
+ * const result = isSameISOWeekYear(new Date(2003, 11, 29), new Date(2005, 0, 2))
+ * //=> true
+ */
+export function isSameISOWeekYear(dateLeft, dateRight) {
+  const dateLeftStartOfYear = startOfISOWeekYear(dateLeft);
+  const dateRightStartOfYear = startOfISOWeekYear(dateRight);
+
+  return +dateLeftStartOfYear === +dateRightStartOfYear;
+}
+
+// Fallback for modularized imports:
+export default isSameISOWeekYear;